package jok.demo;

public class SystemDemo {

	public static void main(String[] args) {
		
		System.out.println(System.currentTimeMillis());
		
		System.out.println(System.getProperty("java.version"));
		System.out.println(System.getProperty("java.home"));
		System.out.println(System.getProperty("os.name"));
		System.out.println(System.getProperty("os.version"));
	}
}
